Which among the following is most prone to iodine deficiency disorders?

Correct option is C

Mountainous regions are most prone to iodine deficiency disorders due to the lack of iodine-rich soil and water sources. The isolation of these areas also makes it harder for iodine-rich foods to be accessed.
Explanation of each option:
· (a) Urban centers – Incorrect. Urban areas typically have better access to iodine-rich foods and fortified products, thus iodine deficiency is less common here.
· (b) Agricultural belts – Incorrect. Agricultural belts are generally fertile and provide a good supply of iodine-rich food sources, making iodine deficiency less likely.
· (c) Mountainous regions – Correct. These regions, especially those far from coastal areas, lack iodine-rich soils and are more susceptible to iodine deficiency.
· (d) Plateau regions – Incorrect. Though plateaus may have some challenges in terms of nutrient-rich soil, they are not as prone to iodine deficiency disorders as mountainous regions.